Forbes Asia said Australia's tycoons were also getting older, with 16 on the list of 40 aged 70 years or more.

Packaging magnate Richard Pratt, who died in April from cancer aged 78, was replaced on the rich list by his son Anthony.

Anthony Pratt, who now heads Visy Industries, was in sixth spot, with a net worth of $US1.6 billion ($A2.12 billion).

Other newcomers to the list were Reece Australia chairman Leslie Alan Wilson at 28th with $US445 million ($A590.81 million), and gaming magnate Bruce Mathieson at 36th with $US350 million ($A464.68 million).